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Climate in Trémel · Météo-France 1991–2020 normals

Hardly any mainland French towns see fresher July days than Trémel

Deep winter brings January lows near 4.1°C. A year here swings 18°C from midwinter lows to midsummer highs. Frosty nights are scarcer than in 93% of mainland French towns. The heating season runs November to March: each of those months averages under 10°C.

July afternoons: cooler than 96% of mainland French towns
January nights: milder than 92% of mainland French towns
Rain a year: wetter than 92% of mainland French towns

These are the figures of Météo-France’s Pleyber-Christ Sa station, 21 km south-west.

A year in Trémel at a glance

Each month’s typical high and low in °C, at the Pleyber-Christ Sa station.

Jan9°C4°C
Feb10°C4°CColdest nights
Mar12°C5°C
Apr14°C6°C
May17°C8°C
Jun20°C11°C
Jul22°C13°C
Aug22°C13°CWarmest
Sep20°C11°C
Oct16°C9°C
Nov now12°C7°C
Dec10°C5°CWettest
A normal year

What a year in Trémel feels like

Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Pleyber-Christ Sa.

Winter
10°C / 4°C
376 mm of rain, the wettest season
Spring
15°C / 6°C
231 mm of rain
Summer
21°C / 12°C
20 days of 25°C+ a year
Autumn
16°C / 9°C
311 mm of rain
Best months to be outsideMayJunJulAugSepHighs of 17–27°C and nights of 8°C or more
Rain

About 1,102 mm of rain a year

December is the wettest month and July the driest. About 34 days a year bring 10 mm or more. 2nd wettest of 61 towns of 2,500+ in Côtes-d'Armor.

1,102 mm
Rain a year, over 161 days of 1 mm or more
Wetter than 92% of mainland French towns
34
Days a year with 10 mm of rain or more
1,463 hrs
Sunshine a year at Landivisiau
41 km away

Rain by month

Millimeters

141 mm
JFMAMJJASOND

Sunshine by month

Hours of sunshine at Landivisiau

183 h
JFMAMJJASOND
Frost & warm days

19 frosts and 20 days of 25°C a year

On about 19 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 20 days a year reach 25°C, and 2 reach 30°C.

19
Air frosts a year (below 0°C)
Fewer frosts than 93% of mainland French towns
under 1
Days that stay below 0°C
20
Days of 25°C or more
Fewer warm days than 95% of mainland French towns
2
Hot days, 30°C or more
Fewer hot days than 97% of mainland French towns

Day counts are Météo-France’s 1991–2020 normals at Pleyber-Christ Sa: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.

Weather station

The Météo-France station at Pleyber-Christ Sa

Pleyber-Christ Sa is 21 km south-west of Trémel. Every figure on this page is the station’s, not a measurement in Trémel itself.

Station (Météo-France number)Pleyber-Christ Sa (29163003)
Distance from the town21 km south-west
Station altitude147 m
Town altitude (its center)131 m
Period1991–2020
Nearest station of any kind20 km
Sunshine measured atLandivisiau, 41 km away

TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.

Compared with other towns

How Trémel compares

Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Côtes-d'Armor.

July afternoons21.9°C
TrémelMedian mainland town
20°C21°C22°C23°C24°C25°C26°C
Cooler than 96% of mainland French towns37th warmest of 61 towns of 2,500+ in Côtes-d'Armor
January nights4.1°C
TrémelMedian mainland town
1°C2°C3°C4°C5°C6°C
Milder than 92% of mainland French towns14th mildest of 61 towns of 2,500+ in Côtes-d'Armor
Rain a year1,102 mm
TrémelMedian mainland town
6008001,0001,200
Wetter than 92% of mainland French towns2nd wettest of 61 towns of 2,500+ in Côtes-d'Armor
Frosts a year19 nights
TrémelMedian mainland town
0204060
Fewer frosts than 93% of mainland French towns38th frostiest of 61 towns of 2,500+ in Côtes-d'Armor
Days of 25°C or more20 days
TrémelMedian mainland town
020406080
Fewer warm days than 95% of mainland French towns21st most 25°C days of 61 towns of 2,500+ in Côtes-d'Armor
Next door

Nearby towns’ climate

The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.

TownStationJuly highJanuary lowRain a year
TrémelPleyber-Christ Sa21.9°C4.1°C1,102 mm
Plestin-les-Grèves 6.2 kmLannion20.6°C 1.3°C cooler4.4°C about the same930 mm
Plouigneau 8.6 kmsame station21.9°C about the same4.1°C about the same1,102 mm
Plougonven 13 kmsame station21.9°C about the same4.1°C about the same1,102 mm
Morlaix 16 kmsame station21.9°C about the same4.1°C about the same1,102 mm
Plourin-lès-Morlaix 16 kmsame station21.9°C about the same4.1°C about the same1,102 mm
Ploubezre 16 kmLannion20.6°C 1.3°C cooler4.4°C about the same930 mm
Month by month

Trémel weather by month

Average daily high and low, mean temperature and rain, 1991–2020, at the Pleyber-Christ Sa station; sunshine at Landivisiau.

MonthHighLowMeanRainSun (hours)
January9.3°C4.1°C6.7°C128 mm60
February9.8°C3.8°C6.8°C107 mm74
March12.0°C4.7°C8.4°C82 mm110
April14.4°C5.7°C10.0°C79 mm143
May17.4°C8.3°C12.9°C70 mm171
June20.1°C10.9°C15.5°C62 mm183
July21.9°C12.7°C17.3°C58 mm169
August22.1°C12.8°C17.5°C63 mm165
September20.0°C11.1°C15.5°C74 mm154
October16.1°C9.2°C12.7°C113 mm105
November12.2°C6.6°C9.4°C124 mm68
December9.8°C4.5°C7.2°C141 mm62
Year15.4°C7.9°C11.7°C1,102 mm1,463
Sources

Where Trémel’s numbers come from

Averages over 30 years, not a forecast.

  • Temperature, rain and day counts: Météo-France’s fiche climatologique for Pleyber-Christ Sa, 21 km away: statistics for 1991–2020.
  • Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
  • Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
  • Sunshine: the nearest station with at least 10 years of sunshine records, Landivisiau, 41 km away.
  • Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Côtes-d'Armor.

Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.

Questions about Trémel’s climate

How warm does Trémel get in summer?

August is the warmest month, with average highs of 22.1°C. About 20 days a year reach 25°C, fewer than 95% of mainland French towns, and about 2 reach 30°C.

How cold does Trémel get in winter?

February nights average 3.8°C. The air drops to 0°C or below on about 19 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Trémel get?

About 1,102 mm a year, more than 92% of mainland French towns. December is the wettest month (141 mm) and July the driest (58 mm).

How sunny is it?

The nearest Météo-France station that records sunshine, Landivisiau (41 km away), averages 1,463 hours of sunshine a year.

Are these figures for Trémel itself?

No: they are the normals of the Météo-France station matched to Trémel, Pleyber-Christ Sa, 21 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.

Where do these figures come from?

Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.

Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station PLEYBER-CHRIST SA, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Trémel →

Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.